// SPDX-License-Identifier: GPL-2.0

#include <errno.h>
#include <libunwind.h>
#include "perf_regs.h"
#include "../../../util/unwind.h"
#include "../../../util/debug.h"

int libunwind__arch_reg_id(int regnum)
{
        switch (regnum) {
        case UNW_ARM_R0:
                return PERF_REG_ARM_R0;
        case UNW_ARM_R1:
                return PERF_REG_ARM_R1;
        case UNW_ARM_R2:
                return PERF_REG_ARM_R2;
        case UNW_ARM_R3:
                return PERF_REG_ARM_R3;
        case UNW_ARM_R4:
                return PERF_REG_ARM_R4;
        case UNW_ARM_R5:
                return PERF_REG_ARM_R5;
        case UNW_ARM_R6:
                return PERF_REG_ARM_R6;
        case UNW_ARM_R7:
                return PERF_REG_ARM_R7;
        case UNW_ARM_R8:
                return PERF_REG_ARM_R8;
        case UNW_ARM_R9:
                return PERF_REG_ARM_R9;
        case UNW_ARM_R10:
                return PERF_REG_ARM_R10;
        case UNW_ARM_R11:
                return PERF_REG_ARM_FP;
        case UNW_ARM_R12:
                return PERF_REG_ARM_IP;
        case UNW_ARM_R13:
                return PERF_REG_ARM_SP;
        case UNW_ARM_R14:
                return PERF_REG_ARM_LR;
        case UNW_ARM_R15:
                return PERF_REG_ARM_PC;
        default:
                pr_err("unwind: invalid reg id %d\n", regnum);
                return -EINVAL;
        }

        return -EINVAL;
}